title: Poetry is in the air: first multi-institutional results of the per-oral endoscopic myotomy procedure for achalasia.
authors.forename: Lee L
authors.initials: LL
authors.lastname: Swanstrom
mesh_terms: D004931:Esophageal Achalasia / Q000601:surgery*; D004945:Esophagoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male